.\" Copyright 2002 Walter Harms (walter.harms@informatik.uni-oldenburg.de)
.\"
.\" %%%LICENSE_START(GPL_NOVERSION_ONELINE)
.\" Distributed under GPL
.\" %%%LICENSE_END
.\"
.TH CCOSH 3 2021-03-22 "" "Linux Programmer's Manual"
.SH NAME
ccosh, ccoshf, ccoshl \- complex hyperbolic cosine
.SH SYNOPSIS
.nf
.B #include <complex.h>
.PP
.BI "double complex ccosh(double complex " z ");"
.BI "float complex ccoshf(float complex " z ");"
.BI "long double complex ccoshl(long double complex " z ");"
.PP
Link with \fI\-lm\fP.
.fi
.SH DESCRIPTION
These functions calculate the complex hyperbolic cosine of
.IR z .
.PP
The complex hyperbolic cosine function is defined as:
.PP
.nf
    ccosh(z) = (exp(z)+exp(\-z))/2
.fi
.SH VERSIONS
These functions first appeared in glibc in version 2.1.
.SH CONFORMING TO
C99, POSIX.1-2001, POSIX.1-2008.
.SH SEE ALSO
.BR cabs (3),
.BR cacosh (3),
.BR csinh (3),
.BR ctanh (3),
.BR complex (7)
